4061. Fertirelin

Nomenclature

CAS number: 38234-21-8
9-(N-Ethyl-l-prolinamide)-1-9-luteinizing hormone-releasing factor (swine); 9-(N-ethyl-l-prolinamide)-10-deglycinamide-luteinizing hormone-releasing factor (pig); Des-Gly10-NH2-LH-RH-ethylamide; TAP-031.
C55H76N16O12; mol wt 1153.29.
C 57.28%, H 6.64%, N 19.43%, O 16.65%.

Description and references

Synthetic nonapeptide analog of LH-RH, q.v. Prepn: M. Fujino et al., DE 2321174; eidem, US 3853837 (1973, 1974 both to Takeda); S. Shinagawa, M. Fujino, Chem. Pharm. Bull. 23, 229 (1975); see also: M. Fujino et al., Biochem. Biophys. Res. Commun. 49, 863 (1972). Enzyme immunoassay in bovine plasma: J. Okada, S. Kondo, ibid. 33, 4464 (1985). HPLC determn of bulk drugs and formulations: P. A. Hartman, J. D. Stodola, J. Chromatogr. 444, 177 (1988). Field trial in bovine cystic ovarian disease: T. Nakao et al., Jpn. J. Vet. Sci. 45, 269 (1983); to induce ovulation for insemination of dairy cows: T. Nakao et al., Theriogenology 20, 111 (1983); K. Yamada et al., Anim. Reprod. Sci. 74, 27 (2002).

Chemical structure

Derivative

Acetate.

Nomenclature

CAS number: 66002-66-2
U-69689E; Conceral (Takeda); Ovalyse (Pharmacia & Upjohn).
C55H76N16O12.C2H4O2; mol wt 1213.34.
C 56.42%, H 6.65%, N 18.47%, O 18.46%.

Properties

Pentahydrate as white, fluffy powder, [α]D25 53.6° (c = 0.5 in 5% acetic acid).

Therapeutic Category (Veterinary)

Gonad stimulating principle.